Talk:Golden Poké Ball Arcade/@comment-31856309-20170513083031/@comment-31428870-20170513135628

it increases the EV's of a pokemon by +4. Example: If you KO a sawk which gives 2 EV's in attack and your pokemon is holding a power item, it will get 2 attack EV's and 4 additional EV's depending on the power item used. I believe it also stacks with the macho brace (if i'm wrong correct me).